Used to balance rolling swivels lock snap. Strengthen the connection between fish line and fish rod. When you use it? pass fishing line though the ring in the center? then bobber will on fishing line. <br />Color: yellow<br />Material: plastic + metal<br />Model: medium<br />Size: about 31 x 7.36 mm (L x W)<br />Bobber diameter: about 7.34＼0.03mm<br />100 x Bobber stop<br /><img src="http://img6.eachbuyer.com/x23/p81/bt718_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p81/bt718_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p81/bt718_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p81/bt718_4.jpg" />