VEVOR Rain Gutter Downspout Extensions, 2-Pack Flexible Downspout Extender, Down Spout Drain Extension Extendable from 22" to 63", Gutter Extensions with Adapters, for Rainwater Drainage, Brown

Can be docked with each other.

Longer than 6 inches If this answer does not resolve your issue, please contact us again for assistance.

No, this product only includes the following accessories. 2x Drain Pipe 2x Inlet Adapter 2x Outlet Adapter 8x M4*18mm Self-Tapping Screws

While I couldn't find specific information about tools required, the product description mentions this downspout extension is adjustable from 22" to 63" and comes with adapters, suggesting a tool-free installation process. However, customer reviews could provide more insights into the installation process.

While the product description doesn't mention anything about clog resistance, customers find it effective. They state that the downspout extensions are easy to install and prevent water from pooling near the foundation.