Iiyunithi ezithengisayo:Into enye
Ubungakanani bephakheji enye: 120X36X20 cm
Ubunzima obunye bubonke: 9.500 kg
Uhlobo loMpakethi:Ibhokisi
Ixesha lokukhokhela:

Intshayelelo yokudubula
Ukudubula kuyisenzo esinzima sobugcisa, kwaye inkqubo yokudubula epheleleyo kufuneka iqulunqwe ngamanqanaba amathathu: ukulungiswa kokudubula, ukunyanzeliswa kokudubula nokugqiba. Ukulungiswa kunye nokusebenza kokudubula ngawona manqanaba abaluleke kakhulu. Iidigri ezintathu ze-90 ekulungiseleleni kunye nokuba amalungu angaphantsi angatyhalwa emhlabeni kuqala kwisenzo sokudubula zikhonkco eziphambili ekusebenziseni ukudubula. Ngokuthandwa kunye nophuhliso lwebhola yomnyazi, uphando malunga nokudutyulwa kweengcali zezemidlalo luye lwanda ngakumbi kwaye lwacokiswa. Ukongeza kwezi zikhonkco zimbini zingasentla, imilo yesandla somdubuli nayo iye yatsala umdla ngakumbi nangakumbi kwiingcali zezemidlalo. Inani elikhulu lezifundo kwi-NBA pitchers ezigqwesileyo ziye zafumanisa ukuba isandla sokudubula se-pitchers egqwesileyo simisiwe kumdlalo. Esinye sezakhono ezibalulekileyo ekufuneka umdlali olungileyo webhola yomnyazi abe nazo kwaye azilawule. Kukho iintlobo ezimbini zezandla zokudubula eziye zaqatshelwa ziingcali kunye nabadlali: enye yisandla esinzima sokudubula, kwaye esinye sisandla esithambileyo sokudubula. Umahluko omkhulu phakathi kweentlobo ezimbini zezandla ulele kwi-angle yokuvula i-lateral kunye ne-longitudinal flexion kunye nokwandiswa kweminwe yokudubula, okubangela ukubahluko kwindawo yoqhagamshelwano (okanye ubukhulu bendawo yoqhagamshelwano) phakathi kwebhola yebhola yebhola kunye neminwe yokudubula kunye intende yesandla, kunye nokwahlukana kwindawo yoqhagamshelwano phakathi kweminwe kunye nesundu sebhasikithi. Umahluko kuxinzelelo kunye nokuthamba