Fine mesh medium size infuser with a drip tray that can be used for a cover to keep the tea hot. This is the best infuser for mug infusing as it sits well on the top of most mugs (8 to 12 oz) and also many 16 oz 2 cup size teapots. We have used them in the Tealeaves Cafe for over 12 years and the majority are still being used as they clean so well. The fine mesh it great for fine teas and herbals like Rooibos.