TriggerPoint foam roller - Grid - Light pinkThe colour may differ from the image, where the inside is red. The original Triggerpoint Grid Foam Roller in black for massages during competitions or after swim training. These Trigger Points have been a staple part of many swimmers' training programmes for a few years now simply because they help you recover better after hard workouts races. Basically, these Grid foam rollers are a very hard, hollowed out foam roller that uses an advanced pattern of