Irocks
M31R
123 × 66.5 × 40 mm · 66 g
palm grip
16.7–20.1 cm
claw grip
18.0–21.7 cm
fingertip grip
19.6–23.5 cm
Hand lengths (wrist to middle fingertip) this mouse suits, by grip.
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Will the M31R fit my hand?
- Will the Irocks M31R fit small hands (about 17.2 cm long)?
- Yes, with a palm grip.
- Will the Irocks M31R fit medium hands (about 18.7 cm long)?
- Yes, with a palm or claw grip.
- Will the Irocks M31R fit large hands (about 20.2 cm long)?
- Yes, with a claw or fingertip grip.
| Grip | Hand length | Hand width |
|---|---|---|
| palm | 16.7–20.1 cm | 7.3–9.2 cm |
| claw | 18.0–21.7 cm | 7.9–10.0 cm |
| fingertip | 19.6–23.5 cm | 8.4–10.6 cm |
Specs
- Length
- 123 mm
- Width
- 66.5 mm
- Height
- 40 mm
- Weight
- 66 g
- Shape
- Ergonomic
- Hand
- Right only
- Connection
- Wireless
Fits like the M31R
The closest mice in length, width and height, so they should feel familiar in the same hand.
| Mouse | Length | Width | Height | Weight |
|---|---|---|---|---|
| Darmoshark N3 | 123 | 66 -0.5 | 40 | 61 g |
| Darmoshark N3 Pro | 123 | 66 -0.5 | 40 | 64 g |
| Keychron M2 | 121.5 -1.5 | 66.7 +0.2 | 40.6 +0.6 | 53 g |
| Keychron M2 4K | 121.5 -1.5 | 66.7 +0.2 | 40.6 +0.6 | 53 g |
| Keychron M2 8K | 121.5 -1.5 | 66.7 +0.2 | 40.6 +0.6 | 53 g |
| AJAZZ M259 | 122.4 -0.6 | 66.4 -0.1 | 38.8 -1.2 | 65 g |
Listed since 2026-10-24.