Our P4B 'Ping' Springs are the absolute best for sound and feedback. Let these springs breath new life and fidget better. To achieve the best PING, please use Si3n4 or Glass balls found here: https://playforbeans.com/products/balls-springs
5mm and 5.5mm Springs will fit on 99 percent of mechanical fidgets out there. If you have any questions please feel free to contact us!
Compatible with 01EDC Mackie 9-Hand Metal Toys DZ 99% of all Mechanical Sliders
