It is a Joy-con grip of Nintendo switch.
You can store the strap.
Hang your finger on the strap and grasp it.
Please enjoy!

Joy-Con Grip Mini is here
https://www.thingiverse.com/thing:4579170

Joy-Con D-Pad Button (Removable) is here
https://www.thingiverse.com/thing:3150809

Single joy-con grip is here
https://www.thingiverse.com/thing:2769344

Print Settings

Printer:

TRINUS

Rafts:

Yes

Supports:

Yes

Resolution:

0.2mm

Infill:

30%

Notes:

Slicer is using simplify3D.