the wristbands are made of nylon + TPE material , which is adjustable to fit well with your wrist. we can provide u with more than 14 kinds of colors for your option , including #1,#2,#3,#4,#5....#14 This is smart watches new arrival wristband and We just sell the smart fitness band watch wristbands , no watch included . we pack each in a opp bag and ship for u via ePacket ,which usually take 2-5 weeks to arrive , mainly depends on the country u are locate in . This colorful wristband is especially designed for summer .It's casual style ..syi