.VP85 Two Line Mini Bump & Feed Trimmer Head (w/ 3/8"- 24 RHF and 5/16"- 24 RHF bolts) 10" x7" x4" VP85 Two Line Mini Bump & Feed Trimmer Head (w/ 3/8"- 24 RHF and 5/16"- 24 RHF bolts), Notes: Dual-line head designed for use on curved shaft trimmers.