I think it's Mammillaria spinosissima. Not sure though, I'm not so knowledgeable about cacti species

— Craigy.J️‍ (@CraigyJ86) 2019.4.3

Mammillaria spinosissima aka the cactus and wonderful greenhouse photos taken at @winterbournehg in Edgbaston https://t.co/Yp3VwiJP1E

— MyPhotosAndI (@myphotosandi) 2019.3.20

Mammillaria Spinosissima . Thankss https://t.co/BOmTyY0BOW

— Remxx ♥ (@MaRemieAnnJoy) 2019.3.24

@esdemirei Mammillaria spinosissima cinsiymiş :')

— yuki (@hqkiseumi) 2018.12.19

อยู่เป็นนะเราเนี้ยะ ตอล้มไม้ไม่ล้ม #MammillariaSpinosissima #Mammillaria #Spinosissima #Cactus #Cacti #แมมมิลลาเรียสไปโนซิสซิมา #แมมมิลลาเรีย #แมมหนามแดง #กระบองเพชร #ตะบองเพชร #Ninety_Cactus pic.twitter.com/NoAHhJjHzf

— Ninety_Cactus (@CactusNinety) 2018.12.5

Just in time for the holidays Mammillaria spinosissima starting up its bloom cycle #mammillaria #cactus #cacti #blooms #pink #pokey #repost instagram.com/p/Bq8fXNdAsXk/…

— Merrick Allen (@MerrickAllen3) 2018.12.4

Mammillaria Spinosissima.The cylindrical and elongated plants grow up to 12 in tall.They reach full height after five to ten years. It grows low to the ground in solitary or in clusters, and its flowers produce generally bright red berries that are club-shaped, smooth, and juicy. https://t.co/HB6qJR964B

— Lil cactus (@Lilcactus4) 2018.11.16

#mammillaria #spinosissima cv un pico. #mammillarialover #cacti #cacticacti #cactuslover #cactus #succulents #succulentslover #piantegrasse #piantegrassechepassione #iphone #iphonexsmax… instagram.com/p/Bp4GRIoH4MX/…

— Fidelio (@Fidelio573) 2018.11.9

うちの子達……… mammillaria spinosissimaのテッカらしい。購入相手の説明によると

— にっぴー（種子爺） (@m_400ie) 2018.7.24

順次出品していきます！ Mammillaria spinosissima マミラリア スピノシッシマ モンスト？ サボテン https://t.co/pDO4YlGr18

— にっぴー（種子爺） (@m_400ie) 2018.8.11

Hello little butterfly on my Mammillaria spinosissima subsp. pilcayensis. Watch your feet! Ouch!! #Cactus #Cacti #Plants #Butterflies https://t.co/AB4bmS6MJZ

— Cactus Zach (@CactiGuys) 2017.8.8

Mammillaria spinosissima. I'm not much of a cactus girl but I love this one because of the flowers it grows <3 #cactus #photography @CanonUSAimaging #canon #nature #flowers #flowerphotography #photographer https://t.co/IvR0FfTQez

— SparkleboooOoOoOoty (@missevieness) 2018.6.28

Reposting @gambitlunatick: FredThe#love #cactus #plants #plant #mammillaria #spinosissima #inspiration #earth #nature #desert #soil https://t.co/73k6mU5zj9

— Christina (@crodgers419) 2017.7.9

I got my mammillaria spinosissima

— Michaëlle Abraham (@Michaëlle Abraham) 2017.2.11

Mammillaria spinosissima fb.me/12jZlX1HM

— turaj ghasemzadeh (@turaj ghasemzadeh) 2016.7.13

Mammillaria spinosissima pinterest.com/pin/4940590215…

— Henk Roosen (@Henk Roosen) 2015.7.25

Mammillaria spinosissima cristata pinterest.com/pin/4940590215…

— Henk Roosen (@Henk Roosen) 2015.4.19

Mammillaria Spinosissima pinterest.com/pin/4940590215…

— Henk Roosen (@Henk Roosen) 2015.4.19

Mammillaria spinosissima v 'un pico' pinterest.com/pin/4940590215…

— Henk Roosen (@Henk Roosen) 2015.3.25

Mammillaria spinosissima pinterest.com/pin/4940590215…

— Henk Roosen (@Henk Roosen) 2015.2.20