Which extendable oven shelf?

GT60

Hi
I am looking for an extendable over shelf
My! oven is 45 cm wide
Thanks

Which one would you all suggest?
this one has bolts
https://www.amazon.co.uk/gp/aw/d/B00PFY7JGO/ref=psdcmw_1345796031_t1_B00NEQDRNO

this one has screws

https://www.amazon.co.uk/Universal-Adjustable-Extendable-Compatible-Electrolux/dp/B00NEQDRNO/ref=asc_df_B00NEQDRNO/?!!!!!googshopuk-21&linkCode=df0&hvadid=232027583466&hvpos=1o5&hvnetw=g&hvrand=5894489242024786627&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9046605&hvtargid=pla-352217188063&psc=1

this one is friction

https://www.espares.co.uk/product/es655005/universal-extendable-oven-shelf
Tools

LadyDee

I wouldn't be depending on friction. Either of the other two really, nothing much to choose between them - reviews are on the whole favourable for both.