Silver Ear Wire Crawler/Earrings No Backs Needed. BRAND NEW BOUTIQUE ITEM. Silver ear wires that can be worn as earrings or crawlers! No backs needed for these simple yet bold ear wires! Alloy; free of lead, nickel and cadmium. Enjoy fast shipping and stellar customer service from a trusted 5-star Posh Ambassador with over 3100 sales to date! Unique, minimalist, boho, festival, simple, casual, trendy earrings!