Review on Aluminium Positioning Squares for Woodworking and Carpentry by Gary Stringfield

When I first bought them I thought they were a bit larger (that's my fault - I didn't read the description). After receiving them, I bought another pair from another source, 8" x 8", made from "high impact hard polycarbonate". After using them I was disappointed because the material wasn't as durable as advertised. So I chose these aluminum alloy angles, which I hesitated at first and was very happy with! They kept my project perfectly square, and the structural integrity of the squares was kept at 90 degrees. Worth the money and so happy I got it.