CzechMates Tile Beads are more durable and have OVER 2x larger holes allowing for multiple passes of beading threads. These beads are made in the Czech Republic from pressed glass and have a very uniform size and shape. The corners are softly rounded and will not cut into your skin or thread. CzechMates Tile Beads. These beads measure 6mm x 6mm x 3mm and have two parallel holes each measuring 1.25mm in diameter. Included are 25 beads in the color Crystal . PLEASE NOTE: The color you receive may differ slightly from the image due to your computer screen settings.