三角 sankaku, Japanese for triangle

“Tawashi” are various types of scrubbers which could be used to clean dishes, windows, and other household items.

Pattern is Japanese but fully charted using standard crochet symbols.

Hook: Japanese size 7.5/0 = 4.5mm, between US G-6 (4.0mm) and US H-8 (5.0mm).

Yarn (Hamanaka Bonny):
31 Red 赤 (429) 16g
32 Light Blue 水色 (471) 16g

Additional info
This pattern also gives the dimensions for the sponge that you cut to shape for inserting into the project.