Support Block,10.88"Lx5"W Base,4"H 29JG13. ANVIL 2400700007. Diversion contrary to U.S. law is prohibited. Support Block, Base Material Rubber, Base Size 10.88 in L x 5 in W, Load Capacity 1,500 lb, Overall Height 4 in, Overall Length 10.88 in, Pipe Support Type Support Block, Support Material Steel.