It is best to use a flat rubber band between 0.6 and 0.8 mm in winter. In addition, according to different slingshots and shooting requirements, you can also choose flat rubber bands with different thicknesses. For example, if you use a slingshot, you can choose a suitable flat rubber band according to the type of slingshot. If you use a slingshot gun, you can choose a thicker flat rubber band to cope with greater tension.

Please note that when shooting with slingshots and flat rubber bands, you should ensure safety and abide by relevant laws and regulations.