The Craft glass block range are pre-drilled glass blocks allowing the glass blocks to be used by the arts and crafts community for all kinds of arty ideas!
Ultrasonic Flaw Detection - Calibration Blocks - Other UT Blocks - Ultrasonic Flaw Detection - Ray-Check Angle Beam - Rompas Block - NDT Supply.com
Round Glass Block Renovates The Construction
Body Lift Blocks, Pucks 2-3 diameter with variety of lengths (PACK OF 4)
Round Glass Block Renovates The Construction
Blocking explained: When and how to block crochet projects - Dora Does
Pittsburgh Corning Premiere 8 in. x 8 in. x 4 in. Decora Glass Block 110498 - The Home Depot
Creative Glass Tile Block Crafts to Inspire Your DIY Projects
M-D Polar Block Clear 5-Window Indoor Insulation Kit 62 in. W X 210 in. L - Ace Hardware
Clearly Secure 3 in. Thick Series 8 in. x 8 in. x 3 in. (10-Pack) Clear Pattern Glass Block (Actual 7.75 x 7.75 x 3.12 in.) CL883 - The Home Depot