I find pin heads a pain in the bum lol never use them what i can suggest is get small crickets, take one small cricket squeeze its head till it dies " grose i know" then put it in ur small spiders cage... smalls slings will eat a dead cricket no worries... u can leave the cricket in for about 2days then remove what the sling has not eaten.... other wise mold will grow on the cricket this is dangerous for slings... repeat this once a week till the sling can eat a live small cricket on its own.....