Black Diamond Czech Glass Two Hole Tiles have rounded edges that help prevent thread from fraying. The Two Hole Tiles are drilled twice with parallel holes to allow for more durable weaving and more interesting design possibilities.

2-hole Black Diamond Tiles specifications: 

• Color: Black Diamond
• Brand: CzechMates
• Category: 2-Hole Beads
• Shape: Tile  
• Material: Czech Lead-Free Glass
• Measurements: 6x6mm, 2.5mm thick 
• Hole size: 0.812mm, fits up to 20 gauge wire or thread
• Quantity: sold by 50 pieces

Please note that the colors of the beads may appear slightly different in person due to variations in lighting conditions and screen settings.