Features: Great for impromptu game at or in the park or for fun at home or at work. No more waiting to get on courts to play. Play indoors against a wall or with a partner as the soft exterior allows for safe practice. With a diameter of 74mm, they are the same size as normal outdoor pickleballs and can securely attached to wall. No more waiting to play and no need to worry about getting hit. Simply practice without interruptions. These balls are the same size, weight and bounce as outdoor pickleballs without being distracted by noise. Specifications: Materials: Sponge Color: Yellow/Green Diameter: about 74mm/2.91inch Package Includes: 3Pcs Quiet Foam Pickleballs note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.