Review on 🔒 200pcs Cord Locks Silicone Toggles Black White for Drawstrings Elastic Cord Adjuster Non-Slip Stopper Mask Adjustment Buckle Accessories Free Plastic Hoist Copper Wire Needle Threader by Wendy Rodriguez

hey they are awesome! I use them for face masks with 3mm elastic and they are perfect. They are small enough to be skinny but great for adjusting elastic length. I don't take them off when washing and drying the masks and they hold up with no problem. The included needle threaders work fairly well for threading through the 3mm elastic (you have to pull quite hard to thread the looped elastic, but the elastic I use is strong enough to hold the necessary tension). This is a neat little feature that can be added to masks to allow people with different head sizes to adjust the elastic.