They will fit the following machines.
eBay
2Sets Bobbin and Bobbin Case for Singer Sewing Machine Top-Loading Bobbin Casing, Singer Sewing Machine Bobbin Case Holder
Aliexpress UK
They will fit the following machines With a presence in the West London area since 1951, here at Tysew we are experienced in all aspects of sewing and embroidery machines. Sewing Machines. Our West London showroom is conveniently located just 5 minutes from the M4 and 10 minutes from the A40/M40.
eBay
10 pcs #172336 Class 66 Plastic Bobbins #172222P Sewing machine bobbins fit for Singer Sewing Machine sewing accessories AA7244
Aliexpress UK
Compatible with SINGER sewing machine models 27, 28, 127, 127-12, 128.
eBay
10Pcs Class 66 Plastic Bobbins #172222P/172336P Sewing Machine Bobbins Fit For Singer Sewing Machine Sewing Accessories Tools
Aliexpress UK
I have personally developed these bobbins for use in Singer machines after being frustrated with poor fit issues with other available new production bobbins including the reputedly compatible Frister and Rossman types.
eBay
A Set of 25 Pre-Wound White Embroidery Bobbins Machine Thread Bobbins, for Singer and Brother Sewing Machines Accessories
Aliexpress UK
10/20/30/40/50pcs Sewing Machine Bobbins. Color: Silver.
eBay
#359838-900 Inspiration Bobbin Plastic Bobbins For Singer Models Household Sewing Machine Accessories
Aliexpress UK
SINGER SINGER MACHINES BOBBINS. Singer Sewing Machines .
eBay
10-100 PCS Sewing Machine Metal "L" Bobbins (55623S) For Singer Brother Janome Bernina Sewing Machine Accessories
Aliexpress UK
Tysew: TY-1100, TY-1100DD, TY-1100DDe. Tysew Limited. Permission is granted to electronically copy and print hard copy portions of this site for the sole purpose of placing an order with Tysew LTD or purchasing Tysew LTD products.
eBay
10-20PCS Sewing Machine Metal "L" Bobbins (55623S) For Singer Brother Janome Bernina Sewing Machine Accessories
Aliexpress UK
10 X 66k CLASS BOBBINS TO FIT SINGER DROP IN TYPE MACHINES. Compatible with Singer Sewing Machine Models.
eBay
12 Pcs Sewing "L" Metal Bobbins (55623S) For Brother Janome Singer Quilting Sewing Machine Spool Part Accessories Shuttle Craft
Aliexpress UK