This 420 Science Rolling Tray featuring Slow Your Roll design by artist Killer Acid (a.k.a. Rob Corradetti) is made from tough, hard-wearing melamine. Use it to roll up on, break up bud, organise all those bits of paraphernalia such as rolling papers, tips, screens etc, whilst also preventing bits of precious herb from ending up on the floor.This rolling tray measures 21.6 cm. x 30.5 cm. and features rounded corners.