Gallerie Wrap Pro bars come 6 bars to a box with a depth of 1 3/4 inch.
Step by Step Instruction (PDF)
Explanation of glue and tape (PDF)
Additional centre braces are available which can be used horizontally or vertically to add stability to larger pictures.
An additional feature of the Gallerie Wrap Pro range are extenders. They are used to connect two stretcher bars so that square or rectangular frames of any size can be assembled.
Extender Step by Step (PDF)