Enhancing grip strength and finger flexibility with this 5kg capacity SEBS grip trainer with adjustable resistance levels for progressive hand workouts Craft with SEBS, this grip strength ball withstands intensive daily use while promoting safe family fitness activity The ergonomic star shape ensures even pressure distribution and comfortable hand, outperforming traditional hand exercisers Small design fit in bags for outdoor training during travel, work breaks, or home fitness routines Ideal for athletes, workers, and rehabilitation patients seeking portable hand therapies or muscle recovery solution