PE, elasticity,shock resisting. Inserting type, nail attached in clips. Save time and cost. ModelHeightH(mm)DiameterD(mm)Nail Spec.(mm)Color YDT-R-33.63.01.4×15WhiteGreyBlackYDT-R-3.54.23.51.47×14YDT-R-45.34.01.7×14YDT-R-56.05.01.7×14YDT-R-68.06.01.82×16YDT-R-78.77.01.82×18YDT-R-89.58.01.95×19YDT-R-911.09.02.05×22YDT-R-1012.010.02.1×23YDT-R-1213.512.02.2×25YDT-R-1416.514.02.3×30YDT-R-1618.016.02.35×32YDT-R-1720.017.02.6×38YDT-R-1820.518.02.6×38YDT-R-2022.520.02.7×40YDT-R-2223.522.02.9×43YDT-R-2526.525.03.1×50YDT-R-3032.530.03.5×55YDT-R-3234.532.03.5×55YDT-R-3538.035.03.5×60YDT-R-4043.840.03.5×65