This 11" RIF softball has a soft center with ProTac synthetic leather cover and is recommended for ages 6 and under. This RIF softball is NOCSAE Level 1 approved. RIF (Reduced Injury Factor) training balls are designed to reduce the severity of ball impact injuries. Great indoor and outdoor training. •Reduces the severity of ball impact •11 inch •.47 COR •RIF - Level 1 •Soft Core •ProTac Cover •Red Stitch Color