<b>Tip:</b> There is a wire circle at the tip of the brush in order to make sure more bristle below. <br> So it would not fit into a bottle with small opening unless you have to force it. <br> <br><b>Specification:</b><br> Material: plastic<br> Color: White+Green<br> Size: approx. 18in*2.17in*2.17in (L*W*D)<br> Perfect for bottle and cup cleaning<br> Powerful cleaning ability, convenient to hold, durable and practical<br> <br> <b>Your Best Choice for a Bottle Cleaning Helper</b><br> DESIGNED FOR: glass jars, vases, tea pots, canteens, tumblers, plastic bottles, water bottles, thermos,<br> EZ Cap bottles, pitchers, carafes, sauce jars, Decanters, Brewing Bottles.