Firefly Prince Glow Kit vs Crystal Jellies Anal Starter Training Kit 5 Inch — Clear

Both are training kits, but the Firefly Prince arrives in body-safe silicone that you can sterilise, while the Crystal Jellies is PVC — porous, so it cannot be properly cleaned and needs a fresh condom each time. The Firefly is also lighter and slightly longer. The Crystal Jellies has been reviewed far more widely, but the material difference is the one that matters most.

The Firefly Prince Glow Kit has 91 reviews averaging 4.8 stars. The Crystal Jellies Anal Starter Training Kit has 420 reviews averaging 4.3 stars — a much larger sample, though the score sits lower.

The Firefly Prince is silicone, non-porous, and can be sterilised with boiling water or a 10% bleach solution. The Crystal Jellies is PVC, which is porous and cannot be sterilised — keep it to one person and use a condom each time.

The Firefly is 6.2 inches insertable; the Crystal Jellies is 5 inches. The Firefly weighs 0.255 kg, the Crystal Jellies 0.54 kg — more than twice as heavy, which some users prefer for the sense of presence and others find tiring.

Both are training kits designed for gradual progression. Maximum diameter, flared base design and taper are not stated for either, so we cannot compare them on those points.

If you want something you can clean properly and keep for years, the Firefly Prince is the clear choice — silicone lasts, and the glow feature is a bonus reviewers genuinely enjoy. If you are curious but unsure you will stick with it, the Crystal Jellies is cheaper and widely reviewed, though you will need to replace it sooner and use condoms every time.

The Crystal Jellies' weight might appeal if you like a solid, present feel, but it is also the reason some users find it uncomfortable after a while. The Firefly is lighter and longer, which suits people who want a gentler, more flexible progression.

Is the Firefly Prince Glow Kit suitable for beginners?
Yes — reviewers consistently call it beginner-friendly, with sizes and shapes that work well for first-timers. One noted it is "perfectly sized for beginners" (Pinkcherry).

Does the Firefly kit glow in the dark?
Yes, and reviewers enjoy it. It is called a "nice addition" (Lovehoney) and "really fun" (Lovehoney).

Is the Firefly kit easy to use and clean?
Yes. Reviewers describe it as "comfortable and easy to insert" (Lovehoney) and "easy to clean" (Lovehoney). Silicone needs only soap and hot water.

Is the Crystal Jellies Anal Starter Kit body-safe?
No. Multiple expert sources advise strongly against jelly materials, stating they are highly porous and potentially toxic even when claimed to be phthalate-free. "I need to first highly highly recommend that you NOT use this kit... I would consider this product to be toxic and highly porous" (DangerousLilly, Reddit r/SexToys).

Is the Crystal Jellies kit good for beginners?
Many users find it excellent for gradual sizing and ease of use: "Great starter kit. Soft, firm, and easy to use. Would recommend to anyone who's curious" (Tiffany, Shopdocjohnson). However, some find even the smallest size too large to start with: "the smallest one is still a tad too big" (robinrobrob, Reddit r/SexToys).

What is the Crystal Jellies kit made of?
PVC, often marketed as "jelly". While some listings claim it is phthalate-free, the material is porous and widely considered unsafe for internal use. "Anything 'jelly' is typically unsafe" (sarge5150, Reddit r/SexToys).

The Firefly Prince Glow Kit is the better buy if you want something that will last and can be cleaned properly. Silicone is non-porous, the reviews are strong, and the glow feature is a genuine bonus rather than a gimmick. The Crystal Jellies has a much larger review base and costs less, but the material cannot be sterilised and expert consensus is clear: PVC is not safe for long-term internal use. If you are serious about anal play, spend the extra and get the Firefly. If you are experimenting and unsure, the Crystal Jellies will do the job — just use condoms and replace it when you are ready to commit.

Both kits are stocked at multiple retailers. Compare prices and check current availability before you buy.

The Snug Report is published by the team behind Coy, a New Zealand retailer that stocks many of the products reviewed here. We say so on every page. Our scores come from aggregated public reviews, not from us — the method is on the methodology page and the evidence count is on every review.