Nail Down Youth Pitching Rubber. All natural white rubber easily attached using four metal spikes. Dimensions: 4" x 18". Also available in adult or regulation size. 

WARNING: This product can expose you to chemicals including DI(2-ETHYLHEXYL) PHTHALATE (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more info go to www.P65Warnings.ca.gov.