ITEM NAME:1 Set 5/16x18 Joint Thread Protector Replacement for Billiard Pool Cue Stick Description: 1 Set Joint Protectors/Joint Caps For Billiard Pool Cue Stick Joint protectors will protect your Joint pin from damage and protect your joint collars from chips. Durable high quality plastic material Specification: Size: 5/16 x 18, approx 56mm / 2.2" length Color: black Size Chart: 5/16 x 18, approx 56mm / 2.2" length Package Includes: 1 Set Joint Protectors Note: Please allow 1-3mm error due to manual measurement Due to the light and screen difference, the item's color may be slightly different from the pictures. Please kindly understand. Make sure you don't mind before you order.1 Set Joint Protectors. Due to the light and screen difference, the item's color may be slightly different from the pictures. Make sure you don't mind before you order. Durable high quality plastic material.