Liquid Glass Thinking Putty is unlike anything you’ve ever seen…literally! Crystal clear in appearance, this silicone-based bouncing putty helps improve concentration, boost creativity, and ease tension. You can stretch it, snap it, and sculpt it and no matter how much you play with it, it will never dry out (however it will develop a cloudy appearance when played with that quickly fades back to pure clarity once you put it down). Incredibly fun and unique, it makes an amazing gift, a fun desk toy, or a cool conversation piece.