Made of plastic! Both have minor scratches on the bottom. There are no problems with use. Nipple sizes: Yellow → M Green → L *I will not send them if you don't need them ☺︎ Clear design baby bottles, available in 160ml and 300ml sizes. - Brand: pigeon - Colors: Clear, Yellow, Blue - Capacity: 160ml, 300ml - Features: Wide-neck design, screw cap Thank you for viewing. Baby bottles Mother's Milk Realization (brand name) Bundle sale