Review on Revolutionary Replaceable Multi Angle Woodworking Drilling Cabinets by James Eledge

Holds a standard edging board for edge to edge bonding of corners. They won't fit, say, two 1" x 3" laying flat like a photo frame or a pair of 2" x 4" but they're not made for that. If you want to connect vertical corners on end boards like boxes or drawer edges, this is great. Rigid enough I had to hold them with two hands, so just enough pressure to hold the glued edges tight while they dry.