Plastic Kursi Ke Peeche Ka Hole Kya Kaam Aata Hai?

Plastic kursiyon ke peeche ka hole sirf design nahi hai—kursiyan stack karte waqt hawa fas sakti hai, hole ki wajah se wo suction nahi banta, isliye easily alag ki ja sakti hai. Hole manufacturing cost kam karta hai, kursi ka wajan halka rehta hai, ventilation badhata hai (baithne par pasina kam), aur agar pani gir jaaye toh wo bhi easily nikal jaata hai. Ye choti si design her din kaam aati hai.