MULTIPURPOSE - Our lab joint clip are great for laboratory, chemical, education,biology, suitable for teacher,laboratory worker,etc.WHAT YOU GET -The package comes with 5 pcs lab joint clip that measure 0.63-inch.RELIABLE MATERIAL -The lab joint clip is made of plastic,which will not scratch glass surfaces.SPECIAL DESIGNED -This lab joint clip is specially designed to fix the experimental materials and prevent dripping.KINDLY NOTE -Please pay attention the product size matches your bottle tube size before placing an order.
eBay