Hyturtle 1Pcs Stylish and Functional Black Tumbler Handle For 20oz Cups - Secure Grip, Lightweight, Dishwasher Safe - Ideal for Travel and Outdoor Activities - BPA Free

This is decently made, but will not fit my stanley cup. Disappointing!!

They are sturdy and easy to hold. However, they do not stay up on the cup unless you really apply muscle to get them super snug. We got these for my 92 y.o. mother-in-law and she can't make them stay up so we have to put them on for her.

I have arthritis in both hands that makes wrapping my hands around a tumbler hard. This handle let's me hold my drinks with just a curl of my fingers. Straightening fingers is hard, thumbs don't bend, this let's me drink coast to coast.

This product is great when you need a handle you can plug it on anything and it stays put no slippage love it.

This cup handle is just ok. It fits well. But it slides down very easily. I have to be careful it doesn’t slide off before I set my cup down. I thought it would have a surface that would cling to the cup better to prevent it from sliding.