Amish Outfitters Planer Board Shockers act as shock absorbers to help prevent damage to the mast system as well as to keep your planer boards from jumping in the waves. The Board Shockers are constructed of heavy UV resistant tubing with Spectra fiber line inside. The heavy swivels and clip will take years of abuse. These are easily clipped in line with your planer board line and planer boards. Length: 30 in. UV-resistant tubing 400 lb. Spectra fiber line inside Heavy 250 lb. swivels Qty. per pack: 2 The Amish Outfitters Planer Board Shockers are made in the U.S.A.