Haptic coin has a bearing groove in the middle. You can DIY. The feel of red copper is heavier, and long-term use will leave the patina of years. The material of titanium alloy is very light, very suitable for carrying. The weight of zirconium alloy is moderate, and the cost-effectiveness of stainless steel is the best.
Haptic Coin Screw Nut
$120.00 – $199.00
I really like this very industrial-style nut shape. The metal is cut and polished to create a sense of edges and corners.
Copper Frosted, Stainless Steel Matte Black, Titanium Alloy Matte, Zirconium Alloy
The quality of this spinner is great and meets my expectations, I just imagined it to be a little bigger, exactly like the picture. But I like it too. I find it helps me deal with LA traffic and I notice that I don't get bothered by it when I use it. Usually I get frustrated.
A very interesting Haptic coin,I love it!