The audio sounded a bit weird to me with a glottal stop in the middle of "dia".
Yes, i think it is the most correct grammar
but to be honest, indonesia people rarely say "pensil-pensil"
And "para" is usually for living things such as 1. Doctors = Para Dokter / Dokter - Dokter 2. Dogs = Para anjing 3. Men = Para pria 4. Women = Para wanita
Hope it helps