This is a premium version of the Key ring Push and Pop Its SPINNERS. Take anywhere sensory tool. The outer casing is metal, and the popping sections are high grade silicone with HIGH RESISTANCE.
These are NOT like others you've felt.
Press the bubbles down, it makes a slight popping sound.
Likened to bubble wrap, personally, I don't think it's similar but who am I to argue with the masses grin. Check out our magnetic pad if you like bubble wrap. Now that is amazing for a similar sensation.