Units:680.3886 gram Product description Features: High density foam structure provides a deeper massage, and is firm enough to support all body types without losing shape after regular use. It is a versatile fitness tool for Yoga, rehab exercises, stability exercise, etc. Eases tightness in muscles after high intensity training for faster recovery and reduced soreness. Specification: Material: EPP Foam Model (Optional) Model----Weight------Size-----------------------Color---------Type #01-------15g/0.5oz---8cm/3.1inch------------Black--------Single Foam Ball #02-------31g/1.2oz---10cm/3.9inch----------Black--------Single Foam Ball #03-------109g/3.8oz---24*12cm/9.4*4.7inch---Black--------Double Foam Ball #04-------109g/3.8oz---24*12cm/9.4*4.7inch---Camouflage---Double Foam Ball #05-------32g/1.1oz---16*8cm/6.3*3.1inch---Black--------Double Foam Ball #06-------32g/1.1oz---16*8cm/6.3*3.1inch---Camouflage--Double Foam Ball #07-------151g/5.3oz---30*15cm/11.8*5.9inch---Black--------Foam Roller Package List: 1 x Foam Massage Tool Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Indications That's it! About this item RELIEVE PAIN: Designed to relives pain for your body tissues: Lower and Upper Back, Neck, Shoulders, Spine, Arms, Hips, Glutes, Legs etc. Designed to help relax your muscles, ease soreness and stiffness and assist rehabilitation. You will feel more comfortable if you use it regularly SIMPLE TO USE: Simply lean on the massage ball or the foam roller and use your own body's weight and gravity to relieve muscle knots and tension SKIN-FRIENDLY: The foam roller massage ball set adopting skin-friendly EPP Foam, which is soft, non-allergenic, non-toxic, comfortable and durable to use. The foam roller features ergonomic soft surface that making you feel comfortable while massaging your muscles LIGHTWEIGHT & PORTABLE: This yoga massage therapy ball is small, lightweight and portable to carry along on any trip. You can put it in your backpack and have a nice trip WILD APPLICATIONS: Perfect for use while sitting on any chair, laying in bed, on the floor, or on a yoga mat. Ideal for use at home, at the office, or at the gym RELIEVE PAIN: Designed to relives pain for your body tissues: Lower and Upper Back, Neck, Shoulders, Spine, Arms, Hips, Glutes, Legs etc. Designed to help relax your muscles, ease soreness and stiffness and assist rehabilitation. You will feel more comfortable if you use it regularly SIMPLE TO USE: Simply lean on the massage ball or the foam roller and use your own body's weight and gravity to relieve muscle knots and tension SKIN-FRIENDLY: The foam roller massage ball set adopting skin-friendly EPP Foam, which is soft, non-allergenic, non-toxic, comfortable and durable to use. The foam roller features ergonomic soft surface that making you feel comfortable while massaging your muscles LIGHTWEIGHT & PORTABLE: This yoga massage therapy ball is small, lightweight and portable to carry along on any trip. You can put it in your backpack and have a nice trip WILD APPLICATIONS: Perfect for use while sitting on any chair, laying in bed, on the floor, or on a yoga mat. Ideal for use at home, at the office, or at the gym