These are 2.5x cheaper than eBay($23.90) or even Amazon US $12.90 & $12.26 Shipping to Australia
You can add multiple without affecting the shipping price much
I use these penny card sleeves inside my top loaders for my expensive Pokemon Cards and by themselves for cards worth less than $1
Mod: Removed sockpuppet link.
KMC red packs are the standard go-to for sleeves and well worth it. How do these compare?