Easy assembly / dismantling: The various openings allow locking in one's swivels and sinkers. Rigidity: Its strong rigidity prevent bending during the winding in of the line Easy dressing: The notches at the ends allow blocking the line Composition: 100% foam. Dimensions: 200 X 120 X 16 mm Design: TEAM CAPERLAN engineers and designers developed and tested this winder in Cestas, France.