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Best slug collar in this set

Updated: 23 October 2026

You have put lettuce or young brassicas out, and the leaves are lace by morning. A search for the best slug collar on amazon.co.uk returns a raised plastic ring and a flat felt disc under one name. Prices and stars for the set are on the [snail collar comparison](/hub/pest-control/snail-collar). This page names one top pick for a climb and one best-value pack for a brassica stem. Figures are captured amazon.co.uk listings, not a lab trial. A qualifying purchase can earn a commission at no extra cost to you.

You have put lettuce or young brassicas out, and the leaves are lace by morning. A search for the best slug collar on amazon.co.uk returns a raised plastic ring and a flat felt disc under one name.

Our top picks

On this page

Top pick in this set

The best slug collar, when slugs and snails climb, is HanYun. Twelve green PET rings cost £12.99, about £1.08 each. The size lines agree: 21 cm across and 12 cm high, with a 45° downward lip. The stars are 4.9 from seven reviews, the highest average here and the thinnest file among packs with any stars. A wide crown is harder to thread, so a ring that drops over a May seedling is awkward on a July courgette. Skip HanYun if you need more than seven reviews, or if the damage is at the stem rather than on the leaf. The felt discs are the other award, and they are not a substitute wall.

Best value for a brassica stem

If the job is a brassica stem rather than a climb, the best-value pack is the unbranded 15 cm felt, twenty-five discs at £6.99. The rating is 4.4 from 52 reviews, the largest file in the set, at about 28p a disc. The Royal Horticultural Society’s flat collar of about 8–15 cm is for cabbage root fly, Delia radicum, at the stem. Fifteen centimetres suits a cabbage, kale, or sprout at planting, and it is not a slug ring. Felt has no lip. Reviewers report wind lift and slugs underneath. An exposed allotment where you will not pin the discs is a reason to skip the pack. When a 15 cm disc is the wrong object, use the slug collar buying guide.

Close packs that are not the call

KAHEIGN is the same £12.99 for twelve rings, at 4.4 from 32 reviews. The title says 20 cm by 12 cm, a bullet says a 26 cm side and 12 cm height, and the technical line says 15 x 10 x 20 cm. A review reported eleven collars in a twelve-pack. McBlast is ten rings at £10.99 and 4.1 from 36 reviews, the largest raised-ring sample here. One UK buyer wrote that slugs climbed the collar and ate the cabbages. Other buyers added copper tape. The RHS trial on 108 lettuces found no damage reduction from copper tape, and it did not test these plastic lips. AOOWU is £23.99 for twenty-four rings, 4.0 from 35 reviews. A UK shopper returned a set as thin and damaged, and the listing prints only the parcel, so the ring size is missing. Ghligna states twenty rings at £15.99, 23 cm outer and a 3 cm lip at 45°, and has no stars. Take it only if you need those centimetres in writing.

What best does not mean

Best here means a decision inside one amazon.co.uk set. The RHS has not tested these PET packs. Wisley tried eggshells, grit, wool, bark, and copper tape on 108 lettuces, and that trial is not a verdict on every plastic ring. No listing carries an HSE number or a published count of plants saved. A collar also leaves eggs already in the soil, and a leaf across the rim is a bridge. Green Gardener’s six collars at £14.99, and a four-pack at £5.99 sold with copper tape, are other shops’ prices, not listings in this set.

Common questions

Which pack is the top pick in this set, and for whom?
HanYun, if you want a raised ring for small plants: twelve green PET rings at £12.99, listed at 21 cm by 12 cm with a 45° lip, rated 4.9 from seven reviews. It suits lettuce, beans, or flowers while the crown still drops through the opening. Skip it for a flat cabbage-root-fly disc, or if seven reviews is too small a sample.
Why is the felt disc with 52 reviews not the top pick?
That file, 4.4 from 52 reviews at £6.99, describes a flat stem collar, not a wall with a lip. The RHS collar of about 8–15 cm is for cabbage root fly at the stem. A higher review count does not change the shape.
Who should skip HanYun?
Skip it if seven reviews is too small a sample, if the plant is already wider than the 21 cm opening, or if the brassica is failing at the roots. A July courgette is the wide-plant case. For roots, you want the 15 cm felt disc.
What is the best-value pack if you only need a stem disc?
The unbranded felt: twenty-five pieces at 15 cm for £6.99, about 28p each, at the top of the RHS range for a cabbage root fly collar. It is the wrong buy if you needed a lip, and a poor fit on a windy plot unless you pin each disc.
Is McBlast better because it has 36 reviews?
No. Thirty-six reviews do not outrank a stated size when one UK buyer reported that slugs climbed the collar and ate the cabbages. The pack is ten rings at £10.99, rated 4.1. More comments help when they describe a seal that held.
Is AOOWU the premium choice at £23.99?
AOOWU at £23.99 is the dearest ring pack here: twenty-four pieces, rated 4.0 from 35 reviews. The price buys more pieces, not a stated diameter. A UK shopper returned a set as thin and damaged. Check each piece on arrival if pack count is the only reason you chose it.

Related pages

Sources

Public UK sources used for this comparison. Shelf prices, stars and review counts are the amazon.co.uk figures captured for these ten listings. Last checked 21 October 2026.

  1. RHS slugs and snails (retrieved 21 October 2026)
  2. RHS barrier trial (retrieved 21 October 2026)
  3. BBC on the RHS slug barrier trial (retrieved 21 October 2026)
  4. RHS cabbage root fly (retrieved 21 October 2026)
  5. GOV.UK metaldehyde ban (retrieved 21 October 2026)
  6. AHDB slug control (retrieved 21 October 2026)
  7. Consumer Rights Act 2015, section 9 (retrieved 21 October 2026)
  8. RHS Plants zinc collar (retrieved 21 October 2026)