Specimen Length: Common 10"（25.4 cm）or 20"（50.8 cm）adjustable
Turn Direction: Obverse and inverse turn (S twist or Z twist) all can use
Load Weight: Original weight 2.5N (Additional weight: 2.5Nx1, 5Nx1, 10Nx1)
Revolution Indication: LCD display, with button to return zero
Transmission: Manual test per three rounds specimen backs one twist circle.
Dimension: 93×15×45 cm
Weight: 20 kg