Are these like a thick rubber? Or more like a thinner plastic? I am looking for the heavy rubber truck type
1430448
They are made of a thick rubber compound, not plastic. Read my review for installation and modification tips.
1049775
the tires are not plastic, they are rubber. but the difference between the two is that these don't have air in them
469742
They are rubber baby buggy bumpers... ;o) Though they are made of firm rubber...
293546
They're plastic, but I wouldn't call it hard. They're not rubber, just not of a high enough quality for rigid plastic. It's like a cheap plastic reusable cup plastic.
1427659
They are not made of rubber and appear to be some type of polyethylene or a like product. They seem sturdy but should be kept away from exhaust pipes as they may tend to smolder or melt.
252117
They are hard plastic. Not rubbery at all. My daughter likes to chew on them and they've shown no sign of wear.
1619842
I believe they are rubber, but I'm not sure what the exact materials are. I haven't noticed any loss of elasticity.
1609861
They feel like hard rubber which looks like plastic but much more durable. I.E. http://en.wikipedia.org/wiki/EboniteDefinitely not rubber like any sort of conventional tire.
604095
They're rubber. Kind of like "crazy balls" when you bounce them they go really high.
6360
Sorry to answer you so late but they are not plastic as you find on toys. They seem to be made out os a polyurethane or some material similar. They are not rubber. Our grandkids have used them only at a rink because it does not allow you to bring in skates that you have used outside. But they are great in that they can be made larger as your kid grows. A great feature! The gkids say they are very comfortable and are very smooth and control easily.. I would definately buy another set when they grow out of these.
990439
They are not rubberized. They are made out of plastic but seem to work well.
1682850
It's thicker than an aluminum can, maybe twice or three times as thick. They are still a little flexible, but once you screw them down they're pretty solid and seem like they'll be quite durable. Working great so far.
1682370
No they are hard plastic and they hold up wonderfully. My grandson rides his on trails in the woods on dirt trails and paved. It has held up beautifully.
1111168
I bought these and they are rubber. They are great...quieter as well as non-scratching. They also go from bare floor to rugs (and those little slats between tile and wood floors) without catching. Highly recommend them.
1433381
I believe they are rubber..or at least something that resembles rubber and acts the same. Not inflatable.
1081334
No; they are solid rubber/plastic. Many have changed to pneumatic wheels from harbor freight
1511626
Good question SH, I bought these and they're real thick, almost semi-truck grade flaps. I'm not at home but I can measure later but these are not light flimsy flaps at all. I'm using them to shield my boat from 35" Toyo Open Country mud tires and they're perfect!