Grid Ball Size:NO SIZE Curved glass provides 180° vision

Curved glass provides 180° vision with minimal distortion

with a smooth matt surfaceMarked with one blue dot

5" to 10 "easily

Works with free Garmin Coach Adaptive training plans that bring expert

Flexible steel cables for strong cut resistance and PVC coating helps prevent scratching and keeping more durable

Grid Ball Size:NO SIZE Curved glass provides 180° visionThe TriggerPoint GRID Ball is the only model in TriggerPoint massage ball family that uses the patented GRID pattern, mirroring a massage therapists hand: high & firm like the finger tips, tubular like the fingersThis feature offers moderate compression like a comfortable massageIdeal for beginners to fitness enthusiasts or individuals recovering from injuriesThe GRID pattern surface channels blood and oxygen, helps in speeding up muscles recovery,