Adapter rubber that can secure fine rods with a diameter range of 7 to 25 mm firmly to the Lark Support.Combined and available for all lark supports (excluding the Smart Support and Ultra Saikyo Support).* Depending on the Support model, the total length of the adapter will be longer than the Support.Cut off the adapter if necessary.Size: Overall length: 55 mm (each) : SS (Supporting diameter range of 7 to 10) ; S (Supporting diameter range of 10 to 15) ; M (Supporting diameter range of 15 to 20) ; L (Supporting diameter range of 20 to 25) ; Weight: 4 g (SS)/7 g (S)/10 g (M)/11 g (L)