Horizontal Siding Support Bracket ☆Helper☆ Installation Aid

A temporary support tool for installing exterior siding that allows one person to do the work previously requiring two.
For temporary placement from the second row upwards! A compact, lightweight, and easy-to-carry convenient gadget.
I bought a set of two about 8 years ago and have kept one in storage. The manufacturer is unknown, so I'm unsure if replacement springs are available. Currently, the spring is extending and contracting as expected.

I am not very knowledgeable about this product, so please refer to the photos.

Dimensions: Approx. 9.5 x 6 x 4.5 cm
Thank you for looking.