Theres about 50 pieces to assemble and its plastic. While these may actually be OEM(??), they are hard and uncomfortable, not super-duper plush/soft/comfortable like the original ones I have. I wear a size 10 cd (wide) in most shoes. I gave it to my wife to use on her computer in the bedroom since she was complaining about her wireless mouse not working very well. PRO:Buon palcoscenico e separazione degli strumenti (alla pari con Momentum 3, da qui in poi M3)Buona riproduzione di bassi e medi (M3 però fa meglio)Ha una ottima batteria, (M3 qui perde con le sue 14/15 ore REALI)Portata bluetooth eccezionale (M3 nella norma)Molto confortevole (M3 più "morbida" e con ottimi padiglioni/archetto in VERA pelle)Comandi fisici comodi, facilmente individuabili e reattivi. These are nice cotton swabs and I purchased them because they are made with organic cotton and are completely natural and thus biodegradable/compostable. It takes several attempts using various methods to pair the transmitter and the earbuds. Always liked Crocs, tried this style for a change. It misses all the marks. Unlike a lot of cloth shoes, which normally stretch out too far and become annoying to wear, these shoes have sustained their shape.