Nottinghamshire bowlers Jake Ball and Brett Hutton have signed new contracts.
Ball, 24, who has made 32 appearances in all competitions this season, has signed a three-year deal.
And 22-year-old Hutton, a regular in the four-day side in the second half of 2015, has signed a two-year contract with the Trent Bridge side.
"It has been terrific to see two locally produced young cricketers come through," director of cricket Mick Newell told the club website.
"Jake has had a fantastic campaign, starting with his performances during pre-season when he was our best bowler, and he has continued to become a leading performer in all formats.
"Brett has had a big impact on the four-day side, as well as demonstrating that he's a promising all-rounder for white-ball cricket as well."