On Amazon £17 for a pair of adjustable table saw sleigh. Not sure how good it is but reviews seems to be okay so I grabbed a pair.
https://www.amazon.co.uk/gp/product/B008O2KVR8/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1
https://www.amazon.co.uk/gp/product/B008O2KVR8/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1