The LARGE FRAME opens to 28" by 39"
The MEDIUM FRAME opens to 28" by 30"
The SMALL FRAME opens to 28" by 24"
The COMBO PRODDY PACK is one complete medium frame and either the large or small sidebar kit
There are three sizes available from Ault's. All three sizes are great for proddy rug hooking. Some people call their finished product clippy mats.