are these made of silicone (that would make them soft and flexible and rubber at room temperature) or are they hard plastic (like reg. ice trays)?
1857483
No, they're not silicone but plastic that gets rather brittle when frozen. I've been running warm water on the back side, then drying off the water before twisting to release the cubes. With gentle care they're working well repeatedly for me.
1857484
They are made of plastic. I remove them from freezer and let them set on the counter for a minute or two and then twist slightly and they seem to work fine. I use them approximately three times a week or sometimes more. My husband is on dialysis and they are the perfect size for him to take in his small cooler to have ice to hold in his mouth to satisfy thirst.
399743
Somebody else asked me the same question so I checked them out. They are too hard, firm and don't bend to be plastic in my opinion.Good luck,PM
1823943
They are made out of Silicone. Mine also leaked goo but i was able to easily get replacements and now i love them!
1225879
Ken, my amateur analysis would be rubber, not silicone...they work great and wear well.
76177
It's made out of a rubbery material. It's very flexible. I'm glad I bought these!
671895
They are silicone. They are also a bit stretchy, so don't be concerned if they appear to be a little small for your jar.
625496
They are harder plastic. Definitely not silicone. I think the keyboard has a nice feel.
358252
These are hard plastic, just like the insulated tumblers that are very popular.
539344
They're made of silicone, not sure about if they're "professional grade" but we havent had any problems with them.
360225
I guess I'm not sure since I have never made them. The size would be bite siz. It is a harder plastic not rubber typ. The ice cubes pop out fairly easy if you don't fill all the way to the top. Only problem I have had is the ends broke when trying to get cubes out initially.
2201363
They are made of silicone and the ice bars are easy to remove from the tray.
539973
They are made of plastic. Too big to comfortably hold. Do not keep ice very long, of course I don't think Tervis is very good. I will keep the ones I have that hold ice for hours past the double wall plastic ones.
1043177
They are hollow rubber/silicone... I have hard wood through the house and the only scratching comes from the dogs nails...
929847
The truth I really do not know, I feel them, like plastic, but IU would lie to you otherwise because the soft silicone, perhaps I had been in touch with it but I could not tell exactly what it is. Sorry
1618975
They are made of a soft flexible plastic or rubber. Very cute and worth the price.
1833001
very hard plastic. they are amazing. if you put an ice cube in them the drink almost becomes too slushy to even drink. bought theae for my grandfather last xmas. the stickers are a pain to get off, but other thqn that they are great!
452530
They appear to be plastic, but they are actually a kind of soft vinyl and stuffed with filler. So they were kind of soft.