Premium Instant Glue, bonds vanes in 10 seconds, feathers in 20 seconds. This bottle will do 12-15 dozen arrows. Tensil strength of 4200 psi. This is 1/2 oz bottle and costs 1/2 the price of the best seller, and works just as well. Bottled by the same mfg as the best selling glue. Viscosity of 1500 cps.