Material: Aluminium alloy in mill finish
Base measurement is 55x55mm for the 50mm capitals for 50mm posts.
95-100mm top of capital to bottom of base.
Post ball is 50mm diameter on male and female capitals.
PT50F inside measurement is 52mm
Weight: 250-350g all capitals
Male types suit 1.6mm gauge 50mm square tube.
Use the PT50F female type for 50x50mm tube thicker than 1.6mm gauge.