We LOVE our pre-wound bobbins! The brand we use is FIL-TEC. Jenny used FIL-TEC's classic prewound bobbins for the back of Chic Kisses. You can see how beautiful this bobbin thread quilts up! Please note, there is a difference between FIL-TEC's Classic and FIL-TEC's Magniglide bobbins. The classic bobbins are a finer thread.
These bobbins are such a time savor! They come in multiple colors and are great for long-arm use and domestic sewing machines. They come in Large and Medium sizes.
Jenny gives a little more detail about these amazing bobbins - here.
Happy Quilting! :)
~Sew Kind of Wonderful~