Set of 30PCS Large Capacity (M Size) Aluminum Bobbins.This "M style" bobbins measure 1"(25.4MM) in diameter and about 2/5 "(10.75MM )thick. Inner hole diameter 6MM.Please note the product size in the picture.These bobbins have winder slots. Compatible with/Replacement for Handi Quilter brand HQ16 quilting machines.,HQ18 Avante, A-1 LongArm Quilter;Compatible with/Replacement for Baby Lock brand Jewel 18" Compatible with/Replacement for Juki brand TL-2200QVP Quilt Virtuoso Pro Longarm Quilter(IS NOT JUKI TL-2200QVP Mini);Compatible with/Replacement for Gammill brand Quilters Compatible with/Replacement for Pfaff brand Grand Quilter 18" ;Fit for Nolting's : Quilter Master;Fit for Queen Quilter 18" Compatible with/Replacement for Husqvarna Viking brand Mega Quilter 18x8 Long Arm Quilting Machine;Compatible with/Replacement for Tin Lizzie brand 18 Regular models and 18 LS models ;Compatible with/Replacement for Tin Lizzie brand Ansley29 Quilting Machine PART#:18034AS This Listing is for Brand New Set of High Quality Large Capacity (M Size) Aluminum Bobbins Compatible with/Replacement for Gammill brand QUILTERS. This "M style" bobbins measure 1"(25.4MM) in diameter and about 2/5 "(10.75MM )thick. Inner hole diameter 6MM. Please note the product size in the picture Aluminum bobbins are considered the Top-End "Luxury Bobbins". They offer less resistance which translates to less drag to the bobbin thread tension. These bobbins have winder slots. Compatible with/Replacement for following sewing machine models: Handi Quilter HQ16 quilting machines.,HQ18 Avante, A-1 LongArm Quilter Baby Lock Jewel 18" Juki TL-2200QVP Quilt Virtuoso Pro Longarm Quilter(IS NOT JUKI TL-2200QVP Mini) Gammill Quilters Nolting's : Quilter Master Pfaff Grand Quilter 18" Queen Quilter 18" Tin Lizzie 18 Regular models and 18 LS models Tin Lizzie Ansley29 Quilting Machine Husqvarna Viking Mega Quilter 18x8 Long Arm Quilting Machine