The phrase "simple bow" refers to a basic and uncomplicated way of greeting or showing respect by slightly bending forward at the waist and then returning to an upright position. Full definition
If you don't really care for the shape of the velcros, you can get rectangle shaped hair velcros or simple bow shaped ones on Amazon & Ebay for $ 2 - $ 3. (storybookapothecary.com)
This simple bow has the ability to grow and change with your skill and strength. (geekwrapped.com)
This simple bow comes with the string, riser, and limbs, so you can choose your accessories to your tastes. (geekwrapped.com)