[SILVER EARRING POSTS]: The silver ball post earring stud design is understated and elegant, suitable for various styles and occasions. It can be worn by different people and ages, making you more elegant. [150PCS STAINLESS STEEL EARRING STUDS]: You will get 150pcs ball stud earring finding and 150pcs jump rings, 150pcs 201 stainless steel and 150pcs plastic ear nuts , so you don't have to buy extra. The sufficient quantity can meet your different needs, making it very suitable for manual diy production. [SIZE AND CONTENT]: Ball post earring stud * 50pcs: about 14mm(0.55in) long, beads: 3mm, hole: 2mm, pin: 0.7mm. Ball post earring stud * 50pcs: about 15mm(0.59in) long, beads: 4mm, hole: 1.7mm, pin: 0.7mm. Ball post earring stud * 50pcs: about 16mm(0.63in) long, beads: 5mm, hole: 1.6mm, pin: 0.7mm. 201 stainless steel ear nuts * 150pcs: about 6x4.5x3mm(0.24x0.18x0.12in), hole: 0.7mm. Plastic ear nuts * 150pcs: about 4x4mm(0.16x0.16in), hole: 1mm. Jump rings * 150pcs: about 5x0.6mm. [GOOD QUALITY MATERIAL]: The ball stud earring finding is made of 202 stainless steel. And the ear nuts are made of 201 stainless steel and plastic. The jump rings are made of 304 stainless steel. Stud earring making kit is not easily discolored or broken, comfortable to wear and suitable for long-time use. [MEANINGFUL GIFTS]: Handmade ball post earring stud not only allow you to enjoy diy activities, but also offer finished products as gifts to friends and family who enjoy wearing handmade jewelry.