- CORE ballstretcher has more squeeze inside
- CORE has ridges outside for AXIS inner ridges to grip
- AXIS power ring is designed to add double the squeeze to CORE
- extra-soft Plus+SILICONE is smooth on the nuts
- CORE ballstretcher has more squeeze inside
- CORE has ridges outside for AXIS inner ridges to grip
- AXIS power ring is designed to add double the squeeze to CORE
- extra-soft Plus+SILICONE is smooth on the nuts