Suitable for most sewing machine bobbins: AEG, Babylock, Bernina, Brother, Carina, Elna, Gritzner, Husqvarna, Janome, Medion, Necchi, Pfaff, Privileg, Singer, Toyota, Veritas, etc. Box contents: ready-made spool box with sewing machine spools made of plastic, metal or even with wound thread spools. Usage: Semi-circular compartments prevent bobbins from slipping and fit perfectly in the bobbin box. Material: The bobbin box is made of shatter-proof transparent plastic. The sewing thread is 100% polyester. Empty spools are made of metal or plastic depending on your choice. Benefits: Perfect storage for up to 25 spools of thread - stored safely in an unbreakable storage box. Feature: Suitable for most sewing machine bobbins, for example: AEG, Babylock, Bernina, Brother, Carina, Elna, Gritzner, Husqvarna, Janome, Medion, Necchi, Pfaff, Privileg, Singer, Toyota, Veritas, etc. Box contents: ready-made spool box as desired with sewing machine spools made of plastic, metal or even with wound thread spools. Use: thanks to the semi-circular compartments, the thread spools do not slip and fit perfectly in the spool box. Material: The spool box is made of shatter-proof transparent plastic. The sewing thread is made from 100% polyester. Empty spools are made of metal or plastic depending on your choice. Benefits: Perfect storage for up to 25 spools of welding wire - stored safely in an unbreakable storage box.