Fitness roller Benefits: improves body awareness and coordination; supports range of motion and strengthening activities; doubles as a massage roller to aid recovery. Function and use: designed for selfmassage as part of mobility and fitness routines. Compatibility and notes: suitable for general fitness work and muscle release; no additional specifications provided. Practical scenarios: Use during a warmup to activate major muscle groups before training. Postworkout to aid muscle recovery and reduce soreness. Mobility sessions to improve balance and coordination. Yoga roller Benefits: durable and easy to operate; supports everyday yoga practice and control during movements. Function and use: a general purpose yoga aid for core, balance, and alignment work. Compatibility and notes: material not specified; described as durable with easy operation. Practical scenarios: Incorporate into yoga sequences for shoulder and arm stability. Use in balance or corefocused poses to enhance control. Pair with breathing routines to improve body awareness. Yoga massage roller Benefits: retains its shape after heavy use; not easy to deform, supporting consistent performance. Function and use: suitable for backfocused massage and myofascial release. Compatibility and notes: designated as a Back Roller in the product lineup. Practical scenarios: Deep back massage after workouts to relieve muscle tension. Postural release sessions to ease stiffness along the spine. Routine combinations with other rollers for fullbody mobility. Neck roller Benefits: well designed for sports training, yoga, and massage applications. Function and use: intended as a Neck Roller within the product family. Compatibility and notes: described in conjunction with Leg Roller for use cases. Practical scenarios: Gentle neck and upper back release after desk work or training. Integrated into yoga sequences for cervical mobility. Massage routine targeting tension in neck and upper shoulders.