Check the listing for details. RYOBI RY40ST01K 40V String Trimmer 15" Expand-It Attachment Capable (Tool Only). Condition: Open box. Listed at 92.99 USD. The RYOBI 40V String Trimmer 15" Expand-It Attachment Capable RY40ST01K (Tool Only) is a powerful and efficient tool that will help you trim strings with ease. This string trimmer is designed to be battery-powered, making it extremely convenient to use. It is also assembly-required, but once you have assembled it, you will be able to use it for a long time. This RYOBI string trimmer is perfect for outdoor power equipment and is ideal for those who need to trim strings in their yard or garden. It is made by a reliable brand and is designed to be very durable. With its 15" expand-it attachment, this tool is capable of handling even large branches. So, if you need a powerful and efficient string trimmer, the RYOBI 40V String Trimmer is the perfect choice for you.