Mildly tacky aggressive close to the table attacking rubber features a powerful top sheet and medium firm sponge. Battle II is designed to generate spin on serve, compact stroke as well as pushes Speed: 11 Spin: 12 Control:11 Sponge: Orange 47deg This rubber is graded from 1-12 and applies only to Friendship 729 Family. The grading is based on laboratory measurements and tests performed by world champions.