Grip Trainer: Steel spring grip strength trainer with ergonomic handles perfect for helping to build strength in your hand, forearm, wrist, and fingers
Adjustable Tension: Hand grip strengthener provides a dial to easily adjust the spring tension from 5 to 60 pounds; helps to increase hand grip endurance and improve dexterity
Durable and Sturdy: Constructed of top quality stainless steel tension spring A perfect choice for athletes, pianists, musicians, tennis players, golf players, rock climbers, computer workers who want to exercise or relax their hands. An ideal gift for your husband, son, Grandfather, male or female friends
Lightweight And Portable: Finger exercisers are compact enough to fit in your pocket, handbag, or gym bag so that you can bring them with you anywhere
Multi-Purpose; The hand grip strengthener forearm grip is perfect for improving strength, power and speed in the wrists, fingers, and forearms. It is not only the best choice for rock climbers, tennis players, athletes and musicians to enhance the flexibility of their fingers and wrists, but also very suitable for people suffering from tendinitis, carpal tunnel, wrist fractures and tendon surgery recovery period.
【Powerful Oxygen Purification】- The outgassing is evenly refined and the bubbles out are fine, which can increase the oxygen content, reduce the carbon dioxide and increase the PH value, making your fish’s underwater environment more purified.
【High-quality Materials】- Made of high-quality white jade, silicon carbide and emery materials, environmentally friendly and durable, with a dissolved oxygen level of up to 99%, several times higher than ordinary air bubbles, which is a premium choice for your aquarium.
【Easy to Clean】- ABS thermoplastic engineering plastic air inlet has superior corrosion resistance, bright and easy to clean. If the air hole is blocked, it can be cleaned with a brush, which is very convenient.
【Wide Application】- These fish tank air oxygen cakes are very suitable for fresh water, can be used in fish tanks, aquariums, water treatment, aquaculture and other place, having a wide range of uses and can create a more purification effect for your water environment.
【Notification】- Please soak the air stones in water for at least one hour before use! You can choose a trachea with a diameter of 4mm or 8mm according to your needs. Since the diameter of the product is 4’’, we recommend a suitable fish tank size of 90-220cm (35.43-86.61inch) for you.
