Imprint Method: UNIMPRINTED - Dice shaped stress reliever. This product is not a toy and is not safe for use by children under 3 or pets. Please note: because each polyurethane stress ball is manufactured by hand, no two balls are exactly alike. Placement of second side imprint may not be exactly centered as it is individually hand printed. Factory is not responsible if imprint is not completely legible. Imprint will break and appear uneven due to the textured surface.