These are magnetic ratchet holders designed for any brand of tool from quarter inch to half inch. They can be placed vertical on the side of a tool box for quick access, or inside of a box for more space and cleaner organization.
The quarter-inch utilizes (6)10x3mm magnets —
https://www.amazon.com/dp/B09S5SMFY4?psc=1&ref=ppx_yo2ov_dt_b_product_details
The 3/8ths uses (4) 15x3mm magnets —
https://www.amazon.com/dp/B09XV87SV6?ref=ppx_yo2ov_dt_b_product_details&th=1
The 1/2 in uses (6) 15x3mm magnets —
https://www.amazon.com/dp/B09XV87SV6?ref=ppx_yo2ov_dt_b_product_details&th=1