You will receive: the package includes 4 pieces in total, which are equipped with adjustable straps and plastic knobs that fit firmly on the palm of the hand; The quantity is sufficient to meet your needs and replacements Learn proper setting technique: this setting technique training aid can teach proper hand placement for setting by limiting how much hand to ball contact is made; Even though you are a beginner, you can get effective training Adjustable design: the wrist belt of the volleyball set rite can be adjusted according to your personal comfort, which is suitable for both adults and teens; The adjustable design ensures the effectiveness of the training Durable material: the setting technique training aid is made of nylon and plastic material, which is sturdy and durable, supporting using a long period of time; The loop fastener on the back can help you adjust the tightness of the straps Inclusive usages: the volleyball set rite can be applied for drill and training for players of most skill levels, and can be applied by solo athletes, coaches, and teams of most levels and ages Size:ball-1.37inch Package Included:4Pcs*Volleyball Training Technique SettingBall not included