Sand-filled ball - soft dumbbell that doesn't hurt your hands
corbellatiPrimary material
The outer material is made of PVC flexible material, which offers high resilience and a soft touch. The surface often has a glossy or matte finish to enhance slip resistance. Inside, it is filled with iron sand or sand particles as the weight core. A valve design allows for adjusting the internal air pressure to balance softness and hardness. The filling density and wall thickness together determine its explosion-proof performance.
corbellatiCore features
1.Weight design
Standardized progressive weight adjustment with multiple settings to accommodate different training intensity requirements.
2.Non-slip surface
Special textures or matte finishes improve grip stability, but excessive protrusions may affect comfort.
3.Safety procedures
Improved shock and wear-resistant technology reduces the risk of damage from drops; soft, rounded design minimizes impact injuries during movement
4.Environmental features
Use eco-friendly, non-toxic PVC to avoid the risk of chemical release during exercise.
5.Buffer performance
The inflatable inner chamber combined with flexible material provides moderate rebound cushioning, suitable for high-impact actions such as catching, throwing, and bouncing.
corbellatiUsage method
① Strength training
Press strengthening: Hold the ball with both hands and raise it above your head, then control its descent at a steady pace to shoulder level, targeting the shoulder and arm muscles.
② Core activation
Place the ball under your abdomen and alternately bring your knees towards your chest in a dynamic plank position to burn fat around your waist and abdomen.
③ Rehabilitation and relaxation
Back rolling: Lie down with the ball under your shoulder blades and slowly roll it to massage the muscles around your spine.
Leg relaxation: While seated, move a ball back and forth under one leg to relieve tension in the posterior thigh fascia.
