These are made by the one and only KKAPPROVED!
KK says "GYM CHALK (magnesium carbonate) – This Banana Bag is a cotton fabric banana shaped grip sack filled with GYM CHALK. The cotton fabric is perfect thickness to dispense just the right amount of GYM CHALK to your hands or equipment for optimal grip. Its adorable, it works, and comes with a carabiner to clip it on anywhere easily."
They measure approx 9.5 inches long.
Slippery Saucers Banana Chalk Bag with Carabiner
$15.99Price
Each Banana also has KKAPPROVES logo on the other side and comes with free stickers from her as well.