Features: OOTDTY INNOVATIVE DESIGN: Safe and straightforward to apply boxing ball, fixed with two stable suction cups at both ends, and the PU ball is comfortable that are adjusted throughout the elastic string MULTIPLE FUNCTIONS: Increase reaction speed, concentration, quickness and hand-eye coordination, burn calories, get fitness, body shaping, pleasure or relieve your feeling SOFT and ELASTIC: The foamed PU ball is softer than other tennis ball and slideable on the elastic string for quick elastic mirrored image PORTABLE: The complete boxing ball equipment is small and light for your exercise in assorted place COMPONENTS: Out product involves four powerful suction cups, a chunk of elastic string with adjustment buttons, a Foamed PU ball Specifications: Material: PU Color: As The Picture Shows Package Weight: approx String Length: approx/114 Package Includes: 1 Set of Boxing Ball Note: Please allow 1-2cm error because of handbook size Please make sure you don't mind earlier than you bid Due to the adaptation between various monitors, the image won't replicate the actual color of the object Thanks!