These L and T gussets are made from 7075-T6 aluminum, 0.08" thick material. Tapered for a higher strength design. Holes are 0.197" diameter and 0.5" spacing. The L gusset weighs in at 10g (.022lb) and the T gusset 12g (.027lb). Gussets are not anodized but have been tumbled / deburred.