Enfiiiiin a bottle brush which is aptly named "superior" !! I could not go to my sprinklers purchases that, after a few uses, paint nothing because their bristles are bent or fallen! On it the hairs are very hard, the brush is well stocked with different hair textures. So no need to tire scrubbing bottles as a sick;) In addition, a small brush nipple is hidden in the handle, the suction cup is hold the brush upright to drain more easily and colors are super nice! A buy without hesitation!