do these have that rubber-ish grippy stuff inside? so they don't slip? thanks!
1637351
they do not have rubber or any other lining. They are smooth but I have not had a problem with sliding...I would think you would not unless you have short or very thin hair.
1637352
No they don't , I was hoping it they would, I have hair past my butt AND THESE do slip right thru very easy I have found the more I use them , good luck
2148103
Yes, they are covered and smooth. No, no sticky feeling or texture anywhere. Really holds a lot!
2129015
They do slip around. I put a dish towel underneath to keep it from slipping.
1765947
They do have grip, but not like sandpaper. They are very sturdy, firm, dense, but porous -- similar to pool noodles but FIRM. I use one under my pillow and hang my head off the edge for a neck stretch. It doesn't slip. I even have some trouble moving it because it doesn't slide easily on the sheet. However, it does leave little black specks of the material coming off. I have never stacked the two, but I don't think they would lock or grip together and be safe for standing. I hope this helps.
1168916
These are made of a rubbery like material filled with air. We have not had them slip out from under a child but we have only used them on carpeted surfaces inside and we have used them on concrete outside. I think the rubberized like material they are composed of make them not slippery, but they are also light weight and filled with air so when you put any type of pressure on them, they deflate making an uneven surface. Imagine walking on a baby's squeeze toy-that is what they are like.
875989
They do slide on a smooth table...they are not rubbery so they don't have any grip.
1404856
No, there is no "natural grip" on the inside bottom of the tray. However, I haven't had any problems with things sliding around a great deal.
492440
Yes they get slippery. They are textured pretty good but its still plastic and it gets tough when your hands get sweaty. And I use these outdoors in phoenix in the dead heat of summer. I like to think it makes the workout harder tho.
1240011
Its not grippy soft rubber like a tennis shoe sole, but its not a hard plastic either. Bags of groceries dont slide around but a large book or stroller will slide. Hope this helps.
2010213
No, they have a non-slip coating on both top & bottom. I've experienced the design to be very stable.
404447
They are rubber. They wear well and grip great. I use them on a daily basis and they never slip.
1066576
We do not have that issue. I have them on hardwood floors and tile flooring and they slide very nicely. I do have the "beads of rubber " on the inside , could that be your problem?
2141700
Yes ours came with rubber on the bottom, along with how heavy it is we do not have any problems with slipping.
1226814
They are a very hard rubber compound and even if it did not have good brakes there would be no slippage. I have used it in all types of weather while visiting Ports of Call while on cruises and here at home with not one bit of slippage. They are definitely hard rubber with tread.
230860
Excellent for driving they have a rubber like material on the inside of 3 fingers.. thumb pointer & middle. So they do have a grip...hope this helps...I think the other reviews may not have ordered there correct size so they had issues
2095962
If they are like mine, they are not "slippery" at all - just like regular cotton sheets. Which, they are..... ;-)And I totally disagree with Denise, since mine are VERY soft and comfy.
1375817
I never had a problem with them slipping at all. Mine are stacked on my desk and have a little lip that sort of locks together. I love them.