Krachtige 100 kg krachttrainer voor mannen, stil, zelfstartend, centrifugaal, metalen handgreep, bal, fitnessapparatuur voor arm en pols

Ordering Instructions Sample/Proofing: Please contact customer service to adjust the price! Please contact customer service for discussion! Please contact for discussion! Ordering: You can place wholesale orders directly, all items are in stock, and we will ship to you as soon as possible. By default, it is shipped in neutral English packaging, with the words "MADE IN CHINA" printed on the color box. Chinese packaging is also available. If you have any special requirements, please make a note. OEM/ODM Customization Instructions: We support small order customization, please contact customer service for details. Generally, free customization of leather cases with logos starts from 1000 pieces, and free customization of color boxes, manuals, etc. starts from 3000 pieces. If you need to customize logos, color boxes, or manuals, please contact us for discussion! Shipping time: Small quantities are usually shipped on the same day, while larger quantities typically take about 20 days to be dispatched. Logistics situation: For small quantities, the default is express delivery; for medium quantities, express delivery is provided with door-to-door service; for large quantities, please contact customer service for logistics arrangements. If there is a designated logistics service, please make a note and contact customer service to discuss Product Information Product Name: Wrist Strength Ball, Gyro Ball, Power Ball, Grip Strength Ball, Light-Up Ball, Magic Ball, Arm Strength Ball Product structure: Shell made of new PC material/fully metal alloy ball core Product dimensions: approximately 70*70*55CM Packaging: Neutral English color box, contains 1 ball, 1 wrist strap, and 1 instruction manual. The default shipment is in neutral English, but Chinese and English options are available Free OEM services for color boxes, manuals, and leather case logos are available. Please contact customer service for details Packing information: 40 pieces per box, 50 pieces per box, 60 pieces per box, 100 pieces per box. Full box orders will be given priority for shipping Quality characteristics: Stable operation, durable Product Description: The Gyro Ball, also known as the Power Ball, Wrist Power Ball, or Magic Ball, is currently the fastest artificial power device in the world.Purely mechanical, it does not require batteries or power to start. Utilizing gyroscope and celestial mechanics principles, under the influence of the law of inertia and centrifugal force, the rotor continues to spin at high speed, generating powerful force that puts the wrist and arm in a state of autonomous movement.Through manual control, the rhythm and speed of the ball core rotation can be adjusted at will. The faster the speed, the greater the force generated, which can be equivalent to 50 dumbbells of different weights. At 8000 rpm, the force is approximately 14kg, and at 10000 rpm, the force is approximately 22kg.The world record has exceeded 20,000 RPM.Due to the powerful force generated by its high-speed rotation, it is very helpful in enhancing our finger grip strength, wrist flexibility, and arm strength and flexibility. It integrates exercise, entertainment, and fitness into one, and is increasingly favored and loved by people around the world.