ITEM NAME:10x O-type Silicone Ring Rubber Seals for SLR Camera Diving Ball Head Description: This product is processed by precision mold using rubber material. The appearance is smooth and clean, the hardness of the product is about 70 degrees, and the elasticity is moderate. Good oil resistance, abrasion resistance, aging resistance, suitable for use at temperatures from -20 Â ° C to 120 Â ° C. This product is suitable for All / and other diving bracket aluminum ball head accessories. This is small type non-slip rubber seals fit for ball head bottom. Specification: Material:Rubber Inner Diameter:8mm Size:12*8*2mm Color:Black Package Includes: 10 Pieces Replacement Rubber Seals SKU: FUZ0028173477007823.This product is suitable for All / and other diving bracket aluminum ball head accessories. This is small type non-slip rubber seals fit for ball head bottom. The appearance is smooth and clean, the hardness of the product is about 70 degrees, and the elasticity is moderate.