You gain proficiency in the acrobatics skill

Flexilisfolk can stretch their limbs to increase their range, the range for any melee attack or action is 5ft greater than normal.

Your magically elastic body allows you to stretch out and mimic the abilities of some spells. You mage hand would be you stretching your arm out up to 30ft, catapult may be you stretching you arm backwards and causing it to fly forwards to deal damage or creating a large slingshot from your arms, enlarge/reduce you may blow yourself up like a balloon or however else you wish to flavour it.
You know the mage hand cantrip. [3rd] You can cast catapult spell as a 2nd-level spell once with this trait and regain the ability to do so when you finish a long rest.[5th] You can cast enlarge/reduce targeting yourself once with this trait and regain the ability to do so when you finish a long rest. Wisdom is your spellcasting ability for these spells.

Additionally you have resistance to the first 50ft worth of damage from falling.

Your Dexterity score increases by 2 and you may choose one score to increase by 1

Flexilisfolk reach adulthood at the age of 13 and live for up to 250 years on average 

Flexilisfolk are often found at the lawful side of alignment charts, however some do break this trend.

Flexilisfolk are more stretched and lanky than their non Flexilisfolk parents, even halfling and gnome Flexilisfolk are classed as medium sized. Your size is medium, and can be any size between 4ft and 9ft

Your base walking speed is 30 feet.

You have resistance to lightning damage 

You can speak, read, and write Common and one other language of your choice