It’s a #DIY flux bottle from French jewelry blogger @apprendre_la_bijouterie - you take a glass dropper bottle and with gloves remove the glass dropper (she assured me that it easily comes off), then create an incision in the rubber top and insert your brush. Thank you so much for letting me share from your gorgeous blog. 😍 send me your fav DIY in your studio and I’ll share with the community! 🙏🏻😘 #metalsmithsociety #fluxbottle #flux #jewelrytools #solderingtools #jewelrytipoftheday