tu semua term jer petrus,
lain kedai lain term...terpulang pd kita as buyer untuk decide.
takder stended, ikot sedap tekak diorang jer nak sebut.
ada frp/pu/pu fiber/pp/abs/fiber (*ada 2/3 jenis ikot kaler etc)...plg penting u hav to justified ur ownself as mentioned by Iylia H.
cari yg high tolerent incase of any impact (few degrees of elasticity).
lowyat.net ada discussion about this -->
http://forum.lowyat.net/topic/984469