For all orders exceeding a value of 100USD shipping is offered for free.

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.

Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.

. 【Premium Material】The tension calibrator is made of aluminum alloy, which is strong and .

. 【High Performance】Badminton racket tension calibrator are stable performance, vibration resistance, and high practicability.

. 【Tension Measuring Device】Connect between string machines to see the actual tension.

. 【String Tension Calibrator】Spring tension calibrator for checking machine accuracy.

. 【Application】Applicable to all brand stringing machines, suitable for tennis/ badminton/ squash/ racquet.