Low-Profile Swivel BaseHeavy-duty LexanA(R) and stainless steel swivel base. 1 1/8" tall. Six-point locking including two 45-degree positions. Measures 5" x 5" x 1 1/8". For all Cannon downriggers. Includes four 1/4" - 20 x 1 truss head screwsWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.