Fun ice cube trays are great for making frosty treats for the pup or cool ice cubes for drinks for dog lovers. Flexible for excellent release of the cubes, yet durable for long-lasting use. Choose from the small bone size (20 bone cubes) or the large bone size (6 bone cubes). The small bone is 5.1cm long x 1.9cm wide (at the widest point) and the large is 10cm long x 3.8cm wide (at the widest point). After freezing, let the tray "rest" on the counter for 4 minutes before twisting.