Preparing espousal ceremony's things

Preparing espousal ceremony's things: it was a castom that during "bale-boran's" ceremony,they used to talk about purchasing espousal things and proper date for sending them to bride's house which is called "treh".the were also another way,which was giving money to bride's family to do the purchases by themselves. It used to called "khoshkeh". If the groom's family was chosen to buy the stuffs by themselves, they had to put them on trays and send them to bride's house. Bride's shoes, clothing's and other things were also placed on these trays.