Description Made of rubber material with good processing, this rubber spider insert has nice resistance to corrosion, strong and durable for not to break or deform easily, durable to use. The life of the plum blossom cushion determines the life of the coupling, prolong its life.. Features -Color:Orange -Material:Rubber -Size:4.00X4.00X1.50cm/1.57X1.57X0.59in - Flexible plum coupler insert features high flexibility, vibration absorption, durability and practicality. - Fine workmanship, excellent texture, flexible and practical, plum coupler insert is efficient and durable. - Flexible plum coupler insert is easy disassembly and assembly, save your time and effort. - The rubber spider center insert is reliable to use and can be applied with your L jaw coupling. - Flexible plum coupler insert is widely used to motors, screw drives, machine tool platforms, etc. Flexible plum coupler insert features high flexibility, vibration absorption, durability and practicality. Fine workmanship, excellent texture, flexible and practical, plum coupler insert is efficient and durable. Flexible plum coupler insert is easy disassembly and assembly, save your time and effort. The rubber spider center insert is reliable to use and can be applied with your L jaw coupling. Flexible plum coupler insert is widely used to motors, screw drives, machine tool platforms, etc.