INSIDE MEASUREMENTS:

• 1/2" Wide:  12mm (1/2") x 12 mm (1/2") x 2.75 mm thick
• 3/4" Wide:  18mm (3/4") x 16 mm (5/8") x 3 mm thick
• 1" Wide:  25 mm (1") x 16 mm (5/8) x 3.75 mm thick 
• 1 1/4" Wide:  34 mm (1 1/4") x 16 mm (5/8) x 3.75 mm thick
• 1 1/2" Wide:  38mm (1 1/2") x 19 mm (3/4") x 3.75 mm thick
• 2" Wide:  50 mm (2") x 19 mm (3/4") x 4 mm thick