Clamps would not loosen: Artify's brush uses a stronger glue where the wood and hair meet so the ferrules don't come off easily. No hair comes off while painting: The problem of hair loss has been bothering us for a long time. However, we use a selection of high quality nylon materials to minimize loss. Waterproof: The 3-layer coating and strong glue on the wood head make the brushes perfect for soaking in water for over 48 hours. After you finish your work, you can just put them in the sink and wash them whenever you want. Selected collection of shapes and sizes: To bring some new inspiration, Artify chose 15 different shapes and sizes for the set. There are line brushes, flat, square, filbert, round, fan, and comb brushes. The brush set will satisfy you in all your detailed and outline painting applications. Every stroke comes to life. Tote bag with pop-up stand: More than just a convenient storage solution, the carrying case also doubles as a pull-out stand that lets you easily swap out brushes while you work. The tote bag can also be folded up and stored safely in your backpack or tote bag. Two sponges and a palette knife as free accessories for a better painting job.