Tub Works® Smooth™ Jumbo Bath Crayons Bath Toy | Nontoxic

The Verdict

Bath time is either the highlight of your toddler’s day or a battle you dread. These crayons won’t magically fix the latter, but they’re one of the few bath toys that actually deliver on the “easy clean-up” promise most brands make and fail to keep.

I’ve tested dozens of bath crayons over the years, and most fall into two camps: the ones that won’t draw on wet surfaces (defeating the entire purpose) or the ones that require a bleach-based scrub session afterward. The Tub Works Smooth Jumbo Bath Crayons sit in a rare sweet spot — they’re actually jumbo, actually smooth, and actually wash off.

What You Get

The set includes 8 crayons, each measuring roughly 4 inches long and a substantial 1 inch thick. That’s not marketing-speak — these are visibly chunkier than the standard thin crayons from competing brands. As shown in the product image, they come in a clear plastic case that doubles as storage, though the case isn’t watertight, so you’ll want to let them air dry after bath time.

The formula is advertised as nontoxic, and the brand is transparent about the ingredients — it’s a soap-based wax blend, not a paint or dye. That’s a meaningful distinction for parents.

Real-World Performance

On wet tile and fiberglass, these draw smoothly with minimal pressure — the “smooth” in the name isn’t an exaggeration. Colors are vivid but not neon-bright, which actually helps with cleanup. They glide rather than drag, so even a 2-year-old can make marks without frustration.

The wash-off claim holds up in practice. One parent noted: “I was skeptical, but a wet washcloth and 30 seconds per wall and they’re completely gone. No scrubbing, no residue.” Another reviewer mentioned they’d used them for months on a white acrylic tub with zero staining.

The jumbo size is the standout feature. Standard bath crayons are roughly the size of a pinky finger — hard for little hands and prone to snapping. These are closer to a large sidewalk chalk piece, and that makes a real difference for toddlers developing grip strength.

Where They Fall Short

Porous surfaces are the enemy. If you have unsealed grout, textured bath mats, or a painted tub surround, test a small area first. The soap-based formula can settle into microscopic pores and leave faint color behind. One buyer reported: “Worked great on the tile walls, but the grout lines stayed slightly tinted — I had to use a grout brush to get it fully clean.”

Biting is a risk. The crayons are firm but not indestructible. A determined toddler can bite off a chunk, which creates a choking hazard. If your child still mouths toys, this isn’t the right pick yet.

The case is flimsy. It’s fine for storage but won’t survive being thrown in a bath caddy or toy bin long-term. Not a dealbreaker, but worth knowing.

Who Should Buy These

• Parents of kids ages 2-5 who want a low-mess creative outlet during bath time
• Families with tile, fiberglass, or acrylic tubs — the easy wash-off is the main selling point
• Anyone tired of skinny crayons that snap after one use

Skip these if you have heavily textured tub surfaces, unsealed grout, or a toddler who still explores everything with their mouth.

FAQ

Q: Do these stain skin? No. They’re soap-based, so any skin contact washes off with water. No scrubbing needed.

Q: How long does one set last? With 2-3 baths per week, expect 3-4 months before they wear down to unusable nubs. The jumbo size extends lifespan significantly compared to standard crayons.

Q: Can they be used on shower walls? Yes, but keep in mind the water needs to be running or you’ll need to wet the surface first — they don’t draw on dry walls.

The Verdict

Buy it if you want a genuinely washable bath crayon that’s sized right for small hands and won’t turn cleanup into a chore. Skip it if you have porous surfaces or a child who still mouths toys.

These aren’t revolutionary, but they’re reliable, safe, and actually work as advertised. At a 4.4-star average across 220 ratings, the consensus is clear: this is one of the better bath crayon options available. The slight premium over cheaper alternatives is worth it for the washability alone.

Rating: 4.2/5 — Solid buy for most families, with caveats for specific tub surfaces.

Where to Buy

👉 Check Price on Amazon →

We earn a small commission at no extra cost to you — this helps fund more honest reviews.

Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.