Top-Notch Tackle - Set of 3 Small 'Grooved' Bobbins

Hello You are looking at a set of 3 Top-Notch Tackle small 'Grooved' Bobbins.
 
Each Bobbin has a thread each end, are 4g in weight and are 20 mm long.
 
They are made from top quality stainless steel.
 
Any questions please ask