Moldex Soft Foam Ear Plugs 100 Pairs Orange Earplugs -33dB Highest NRR Made in USA

Are these individually wrapped or wrapped in pairs?

What is the difference between these orange drift to sleep earplugs and the purple drift to sleep earplugs?

Anyone have a size measurement? length, width tip and base?

Is this the 6600 one? It's the only one that works for me